Revenue Recognition - Property and Equipment Subject to Operating Leases (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 2,372,594	$ 2,528,738
Customer premises equipment
Property, Plant and Equipment [Line Items]
Cost	1,537,274	1,377,914
Accumulated Depreciation	(1,198,056)	(1,043,431)
Property and equipment, net	339,218	334,483
Satellites
Property, Plant and Equipment [Line Items]
Cost	104,620	104,620
Accumulated Depreciation	(36,591)	(31,360)
Property and equipment, net	68,029	73,260
Real estate
Property, Plant and Equipment [Line Items]
Cost	48,275	46,930
Accumulated Depreciation	(16,855)	(16,048)
Property and equipment, net	31,420	30,882
Total Assets Leased to Others
Property, Plant and Equipment [Line Items]
Cost	1,690,169	1,529,464
Accumulated Depreciation	(1,251,502)	(1,090,839)
Property and equipment, net	$ 438,667	$ 438,625